By itsMeFred My ipad mini (Retina) is currently running 7.0.something
My iphone 4S is going to stay on 7.0.6 unless anyone has a particularly compelling reason I should go up.
I had left my mini alone, also, because I’ve read it’s easier to keep the ecosystem happy if my iDevices are both the older OS…
But. I want to put MS Office on my ipad and it requires at least 7.1 so I guess I’ll have to upgrade to 8.3…
So, what exactly happens when my iPad is 8 and my phone is still 7?
I heavily rely on the cloud sync for my calendar, for example…

Source: MacRumours